MAINTAINERS: Add entry for Intel pin controller drivers

Add MAINTAINERS entry for Intel pin controller drivers. I will be
maintaining them with Heikki, who kindly promised to help me with this.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

MAINTAINERS

diff --git a/MAINTAINERS b/MAINTAINERS
index c017d90..f8042cf 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -7163,6 +7163,12 @@
 S:	Maintained
 F:	drivers/pinctrl/pinctrl-at91.*
 
+PIN CONTROLLER - INTEL
+M:	Mika Westerberg <mika.westerberg@linux.intel.com>
+M:	Heikki Krogerus <heikki.krogerus@linux.intel.com>
+S:	Maintained
+F:	drivers/pinctrl/intel/
+
 PIN CONTROLLER - RENESAS
 M:	Laurent Pinchart <laurent.pinchart@ideasonboard.com>
 L:	linux-sh@vger.kernel.org